应用应变率评价川崎病儿童左心收缩功能  

Assessment of left ventricular systolic function in children with Kawasaki disease by strain rate

作　　者：刘静华[1] 范义[1] 鄂占森[1] 刘滨月[1] 陈金华[1] 于淑敏[1] 

机构地区：[1]广东省深圳市龙岗中心医院,深圳518116

出　　处：《广西医学》2006年第8期1162-1163,共2页Guangxi Medical Journal

摘　　要：目的应用应变率评价川崎病儿童左心长轴方向收缩功能。方法对31例急性期川崎病患儿(冠脉扩张8例)、30例恢复期川崎病患儿(冠脉扩张11例)与20例正常儿童进行超声心动图检查。于胸骨旁左室长轴切面测量各腔室径线;通过M型超声获得左室射血分数(EF);采集心尖四腔、两腔和左室长轴切面的一个完整心动周期的动态组织速度图像,存入MO盘中。脱机分析六个室壁基底部、中间部的收缩期应变率(SRs)。结果急性期组收缩期峰值应变率低于对照组,在所有基底部和部分中间节段有统计学差异(P<0.05);恢复期儿童同一室壁收缩期峰值应变率失去一致性。结论急性期和恢复期川崎病儿童左室长轴方向收缩功能受损。Objective To assess the whole and regional left ventrieular （LV） longitudinal systolic function in children with kawasaki disease （KD） by strain rate. Methods Twenty healthy subjects and 31 children with acute Kawasaki disease and 30 children with convalescent Kawasaki disease were studied by strain rate. The left ventricular ejection fraction （EF） was measured by M-mode echocardiography. Off-line LV velocity profiles along LV apical long-axis view, apical two-chamber view and four-chamber view were obtained synchronously. The peak systolic strain rate from the six walls at basal segment and midwall segment were measured. All parametess were compared among the three groups. Results The peak strain rate in acute KD group was lower than that in control group significantly at all basal segments and some rnidwall segments （P〈0.05）. The consLstency of strain rate in the two segments on the same wall was lost in convalescent KD. Conclusion The left ventricular longitudinal systolic functions in acute Kd children and convalescent Kd children are impaired.

关 键 词：超声心动图 应变率 川崎病 左室收缩功能 

分 类 号：R445.1[医药卫生—影像医学与核医学]